Use of nanoparticles as carriers for biocides in ophthalmic...

Details Use of nanoparticles as carriers for biocides in ophthalmic... Use of nanoparticles as carriers for biocides in ophthalmic...

A - Human Necessities

01

N

A01N 47/44 (2006.01) A01N 25/08 (2006.01) A01N 25/32 (2006.01) A01N 33/12 (2006.01) A01P 1/00 (2006.01) A61L 12/08 (2006.01) A61L 12/14 (2006.01) G02C 13/00 (2006.01)

Patent

CA 2467759

The use of nanoparticles of inorganic materials (e.g., synthetic smectite clays) in ophthalmic compositions is described. The nanoparticles are utilized as biologically inert carriers or depots for biocides. The nanoparticles are particularly useful in preventing or reducing the uptake of biocides from ophthalmic compositions by contact lenses, when the compositions are applied to the lenses.

L'invention concerne l'utilisation de nanoparticules de matières inorganiques (par exemple, des argiles smectiques synthétiques) dans des compositions ophtalmiques. Les nanoparticules sont utilisées en tant qu'excipients ou dépôts biologiquement inertes pour biocides. Les nanoparticules sont particulièrement utiles dans la prévention ou la réduction de l'absorption de biocides à partir de compositions ophtalmiques par des lentilles de contact, lorsque les compositions sont appliquées aux lentilles.

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